Message ID | 20240530111947.549474-8-CoelacanthusHex@gmail.com (mailing list archive) |
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Headers | show
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Thu, 30 May 2024 04:20:04 -0700 (PDT) Received: from localhost ([212.107.28.52]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f44c754d20sm116341765ad.32.2024.05.30.04.20.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 May 2024 04:20:04 -0700 (PDT) From: Celeste Liu <coelacanthushex@gmail.com> X-Google-Original-From: Celeste Liu <CoelacanthusHex@gmail.com> To: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>, Anup Patel <anup@brainfault.org>, Guo Ren <guoren@kernel.org>, Palmer Dabbelt <palmer@rivosinc.com>, Paul Walmsley <paul.walmsley@sifive.com>, Huacai Chen <chenhuacai@kernel.org>, WANG Xuerui <kernel@xen0n.name>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>, Gregory CLEMENT <gregory.clement@bootlin.com>, =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>, Michael Ellerman <mpe@ellerman.id.au>, Nicholas Piggin <npiggin@gmail.com>, Christophe Leroy <christophe.leroy@csgroup.eu>, "Naveen N . Rao" <naveen.n.rao@linux.ibm.com>, Sven Joachim <svenjoac@gmx.de>, Yoshinori Sato <ysato@users.sourceforge.jp>, Rich Felker <dalias@libc.org>, John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>, Russell King <linux@armlinux.org.uk>, Florian Fainelli <florian.fainelli@broadcom.com>, Ray Jui <rjui@broadcom.com>, Scott Branden <sbranden@broadcom.com>, Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>, Tony Lindgren <tony@atomide.com>, Thierry Reding <thierry.reding@gmail.com>, Jonathan Hunter <jonathanh@nvidia.com>, Arnd Bergmann <arnd@arndb.de>, Mykola Lysenko <mykolal@fb.com>, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-tegra@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org Subject: [PATCH 0/6] defconfig: drop RT_GROUP_SCHED=y Date: Thu, 30 May 2024 19:19:48 +0800 Message-ID: <20240530111947.549474-8-CoelacanthusHex@gmail.com> X-Mailer: git-send-email 2.45.1 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2134; i=CoelacanthusHex@gmail.com; h=from:subject; bh=YDOl/Eq4EU32U8REOXA1aLCIyDHNFvkWJvOdwbcP7JA=; b=owJ4nJvAy8zAJfY4pvNJRPo6U8bTakkMaREJlycx/Wu4/Y1tQ+K7zVu27px3o+2Lk2ztb/Ozp zgqUpTP2XztKGVhEONikBVTZBHb+fT1stJHH5bxmsyAmcPKBDKEgYtTACbycj7DP527VsIyk9XS 03fzz7u7fEfWj2MbLsg93Phzuu9s68m3tf0Y/jtvNfKVfy57aprVB27vy3ZWNnJqNsYHao9/4hZ SOJ4dzggA3yZObA== X-Developer-Key: i=CoelacanthusHex@gmail.com; a=openpgp; fpr=892EBC7DC392DFF9C9C03F1D15F4180E73787863 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Fri, 31 May 2024 08:19:55 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Celeste Liu <CoelacanthusHex@gmail.com>, Lennart Poettering <lennart@poettering.net>, bpf@vger.kernel.org, Icenowy Zheng <uwu@icenowy.me> Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> |
Series |
defconfig: drop RT_GROUP_SCHED=y
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On Thu, 30 May 2024 19:19:48 +0800, Celeste Liu wrote: > For cgroup v1, if turned on, and there's any cgroup in the "cpu" hierarchy it > needs an RT budget assigned, otherwise the processes in it will not be able to > get RT at all. The problem with RT group scheduling is that it requires the > budget assigned but there's no way we could assign a default budget, since the > values to assign are both upper and lower time limits, are absolute, and need to > be sum up to < 1 for each individal cgroup. That means we cannot really come up > with values that would work by default in the general case.[1] > > [...] Patch 4 applied to powerpc/next. [4/6] powerpc: defconfig: drop RT_GROUP_SCHED=y from ppc6xx_defconfig https://git.kernel.org/powerpc/c/2bac6caee94e25f59ee47e2d365d7e07465089ba cheers